Remote Sensing Electromagnetic Spectrum

🌐 Remote Sensing Electromagnetic Spectrum🛰️

• Electromagnetic energy travels in an atmosphere as wave that are measured in wavelength and at speed measured by frequency 10⁹
• Wavelength is the mean distance between maximums or minimums of a roughly periodic pattern and it is normally measured in micrometers (um) or nanometers (nm 10-9)
• Frequency is the number of wavelengths that pass a point per unit time

Remote Sensing Electromagnet Spectrum

Based on wavelength region the remote sensing classified into 3 major types

1. Visible and Infrared Remote Sensing

2. Thermal Infrared Remote Sensing

3. Microware Remote Sensing

Table 1 Remote Sensing Electromagnetic Spectrum Table

SNo	Name	Wavelength(nm)
1	Optical Wavelength	0.30-15
2	Reflective 1. Visible 2. Near IR 3. Mid IR	0.38-0.72 0.72-1.30 1.30-3.0
3	Far IR(Thermal and Emissivity)	7.0-15

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